Lec. 3. Credit 3. Prerequisite: PHYS 2109 or PHYS 2110, MATH 2110 or MATH 2120 (MATH 2110 or MATH 2120 may be taken concurrently.) Introduction to classical electromagnetism and optics. A student may not earn credit in both PHYS 2119 and any of PHYS 1310, PHYS 2020, PHYS 2120.